'Wields' in the Bible

Does an ax exalt itself over the one who wields it, or a saw magnify itself over the one who cuts with it? As if a scepter should brandish the one who raises it, or a staff should lift up what is not made of wood!

The craftsman encourages the metalsmith, the one who wields the hammer encourages the one who pounds on the anvil. He approves the quality of the welding, and nails it down so it won't fall over."